N.H. Rev. Stat. § 21-I:81-b

At the onset of work on any state construction project, including any construction project undertaken by the community college system and the university system of New Hampshire, the general contractor or designated project construction manager, if any, shall provide to the awarding state agency a current list of all subcontractors and independent contractors that the general contractor has agreed to use on the job site, with a record of the entity to whom that subcontractor or independent contractor is directly contracted and by whom that contractor or subcontractor is insured for worker's compensation purposes. This list shall be posted on the jobsite and updated as needed to reflect any new subcontractors or independent contractors and also posted on the state agency website, to be updated every 30 days. If it is determined that a subcontractor or independent contractor is present on a state construction site without the contractor's name and direct contracting relationship being posted in a visible location at the worksite, the general contractor or designated project manager shall require the subcontractor or independent contractor to provide the information within 36 hours and to post the information in a visible location at the worksite. If the information is not provided within 36 hours of its request, the general contractor shall suspend the contractor until the information is provided and posted.